Awtumn Minnema, the 2-year-old who died Nov 15 from a prescription drug overdose, had twice the amount of an anti-psychotic drug in her system as a single adult dose, a pathologist said today. Dr. Stephen Cohle, who performed the autopsy on Awtumn, said toxicology reports showed the girl died from too much haloperidol, sold as Haldol, in her system. Haldol is anti-psychotic drug most often used to treat schizophrenia.